I'm not so sure I would say that. Inflation is more harmful to those with assets, it generally accompanies a strong labor market, and the means central banks use to fight it amount to deliberately increasing unemployment.
We can say that inflation is good for those with assets, and interest rate hikes are harmful to those with assets, and the two tend to go together -- but not always; that's mainly up to the central bank.
> We can say that inflation is good for those with assets
If the assets are liquid ones not really; that's one of the reasons asset-holders start to clamor for the Fed to do something when inflation is high. I read the introduction of Secrets of the Temple, which is kind of a counter-conventional wisdom explanation of how higher rates of inflation were salutary for regular people at the expense of the ruling class, and it was pretty compelling.
